Portion of a display panel or screen with an icon



FIG. 1 is a front view of a first embodiment of a portion of a display panel or screen with an icon showing our new design; and,

FIG. 2 is a front view of a second embodiment of a portion of a display panel or screen with an icon showing our new design.

The dot-dash broken lines in each figure showing a portion of a display panel or screen are boundaries of and form no part of the claimed design. 

CLAIM The ornamental design for a portion of a display panel or screen with an icon, as shown and described. 